 |
|
|
|
|
|
|
|
|
Fill in the blanks |
2005-12-05 |
|
From Bonnie:
Distribute the numbers 1 through 9 on the lines below so that two equations are true.
_ _ x _ = _ _
_ x _ = _ _
Use each digit only once-
Answered by Penny Nom. |
|
|
|
|
|
|
How do you simplify a fraction if one of the numbers is negative? |
2005-12-05 |
|
From Stephanie:
Question: How do you simplify a fraction if one of the numbers is negative?
Ex. -32/40
Answered by Penny Nom. |
|
|
|
|
|
|
Vertical asymptotes |
2005-12-05 |
|
From Kelly:
X2 - 49
Y= -------------------
X2 + 9x + 20
We are trying to solve this equation to find the vertical asymptote.
Answered by Penny Nom. |
|
|
|
|
|
|
Solve for x |
2005-12-04 |
|
From Lisa:
5(x-4)=3(2-3x)
Answered by Penny Nom. |
|
|
|
|
|
|
A pattern for a truncated cone |
2005-12-04 |
|
From Nick:
I need to make a large cone segment. The large end has ID of 57 inches and the small end has ID of 23 inches. The cone is essentially a 45 degree cone (90 degrees at the tip). The sides of the segment are 2 feet long. How do I lay out a flat pattern that will fold into this segment? I need to know radius 1 and radius 2 and the angle the piece must be.
Answered by Penny Nom. |
|
|
|
|
|
|
A truncated cone |
2005-12-03 |
|
From Sonny:
I need to create a template for a cone that has a 2" opening at the top, a
4" base and stands 6" tall. Can you tell me how to achieve this?
Answered by Penny Nom. |
|
|
|
|
|
|
How is trigonometry applied to everyday life? |
2005-12-03 |
|
From Yadira:
My question is how is trigonometry applied to everyday lives and functions. Ex: Builders use it but how and what are some examples of the trig-functions or formulas that they use?
Answered by Harley Weston. |
|
|
|
|
|
|
Area of a lot |
2005-12-03 |
|
From Ben:
How do you calculate the area of the following Lot?
I figured the following angles from the deed, which read:
N 86 degrees, 45 minutes E, for 322 feet.
S 10 degrees, 30 minutes W for 113 feet.
N 84 degrees, 30 minutes W for 368 feet.
N 50 degrees, 42 minutes E for 76 feet.
N 40 degrees, 40 minutes E for 15 feet.
There is a discrepancy between two surveyors and I'd like to figure out how to calculate the Area of such a shape.
Answered by Harley Weston. |
|
|
|
|
|
|
A sample size estimation |
2005-12-03 |
|
From Ivonne:
I have to do a research about the behavior of library users. We are going to apply a survey to a population of 1280 students (Management an Economics students) but of course we have to do it to a sample....I need to know the size of my sample.
Answered by Penny Nom. |
|
|
|
|
|
|
11 /12 + b = 5/6 |
2005-12-02 |
|
From Jennifer:
11 /12 + b = 5/6
Answered by Penny Nom. |
|
|
|
|
|
|
A one acre square |
2005-12-01 |
|
From David:
I know there are 43,560 square feet in 1 acre of land.
If that acre were completely square what would be the perimeter of the square.
I am trying to construct a 1 acre pen for livestock.
Answered by penny Nom. |
|
|
|
|
|
|
An integer equation |
2005-12-01 |
|
From Henry:
3x = 2y + 7
I know the answer: x=9 and y=10, but what are the algebraic steps to solve the equation?
Answered by Penny Nom. |
|
|
|
|
|
|
An Arithmetic sequence |
2005-12-01 |
|
From Aana:
The first term in an arihmetic series is 25 and the 3rd term is 19. Find the number of terms in the series if its is 82.
Here's what I did to find d
a+2d=19; 25+2d= 19 ;19-25=2d d=-6/2=-3
This is where I'm stuck. Can you please provide me with some guidance.
Answered by Penny Nom. |
|
|
|
|
|
|
Express t as a function of d |
2005-11-30 |
|
From Matthew:
I have a problem on my homework I cant seem to figure out. Basically it gives me this Linear Regression Equation:
ln t=1.5 ln d-0.8954
and it wants be to transform the equation expressing t as a function of d. For some reason I keep getting it wrong. Anyone got an idea of how to do this?
Answered by Penny Nom. |
|
|
|
|
|
|
Blocks in a mile in Phoenix Arizona |
2005-11-30 |
|
From Rita:
How many blocks are there in a mile in our city of Phoenix, Az.?
Answered by Penny Nom. |
|
|
